Inkscape

• With the cursor tool, select a shape to
• move it by dragging, ctrl restricts you to vertical and horizontal movement
• scale it, ctrl keeps the width and height proportional
• clicking again allows you to rotate and skew the object
• to move something precisely you can use alt+arrow keys to move by one pixel
• Ctrl click to select and deselect objects in groups
• Page Up and Page Down move objects forwards or back in order
• alt click selects objects over the cursor in order from top to bottom
• shift ctrl c turns an object into a path giving it nodes
• ctrl l removes all unnecessary nodes
• ctrl j does some offset thing that I have to look into
• add nodes by double clicking and delete them with delete

Diagram of overlapping objects